@article{robertimclachlan2016bseries,
  author = {Robert I. McLachlan and Klas Modin and Hans Z. Munthe-Kaas and Olivier Verdier},
  title = {B-series Methods Are Exactly the Affine Equivariant Methods},
  journal = {Numerische Mathematik},
  year = {2016},
  doi = {10.1007/s00211-015-0753-2},
  eprint = {1409.1019},
  archivePrefix = {arXiv}
}